Stinger SPP680 680 Amp SPP Series Dry Cell Battery with Protective Steel Case 12V SPP Series Dry Cell Battery Sealed absorbed glass mat (AGM) design Can be used as a replacement for your vehicles standard battery Can also be used as an additional battery to power your high-performance sound system Leak-Proof, non-hazardous design / 100% Sealed and maintenance free This item is not for sale in Catalina Island